SolarEdge SE K Series User manual

Installation Guide

Three Phase Inverter with

Synergy Technology

P/N: SExxK-xxxxIxxxx

For Europe, APACand South Africa

Version 1.1

Disclaimers

Important Notice

No part of this document may be reproduced, stored in a retrieval system or

transmitted, in any form or by any means, electronic, mechanical, photographic,

magnetic or otherwise, without the prior written permission of SolarEdge Inc.

The material furnished in this document is believed to be accurate and reliable.

However, SolarEdge assumes no responsibility for the use of this material. SolarEdge

reserves the right to make changes to the material at any time and without notice. You

may refer to the SolarEdge web site (www.solaredge.com) for the most updated version.

All company and brand products and service names are trademarks or registered

trademarks of their respective holders.

Patent marking notice: see http://www.solaredge.com/patent

The general terms and conditions of delivery of SolarEdge shall apply.

The content of these documents is continually reviewed and amended, where

necessary. However, discrepancies cannot be excluded. No guarantee is made for the

completeness of these documents.

The images contained in this document are for illustrative purposes only and may vary

depending on product models.

Disclaimers 1

Three Phase Inverter with Synergy Technology P/N: SExxK-xxxxIxxxx SExxK-xxxxIxxxx

Emission Compliance

This equipment has been tested and found to comply with the limits applied by the

local regulations.

These limits are designed to provide reasonable protection against harmful interference.

This equipment generates, uses and can radiate radio frequency energy and, if not

installed and used in accordance with the instructions, may cause harmful interference

to radio communications. However, there is no guarantee that interference will not

occur in a particular installation. If this equipment does cause harmful interference to

radio or television reception, which can be determined by turning the equipment off

and on, you are encouraged to try to correct the interference by one or more of the

following measures:

Reorient or relocate the receiving antenna.

Increase the separation between the equipment and the receiver.

Connect the equipment into an outlet on a circuit different from that to which the

receiver is connected.

Consult the dealer or an experienced radio/TV technician for help.

Changes or modifications not expressly approved by the party responsible for

compliance may void the user’s authority to operate the equipment.

CAUTION!

Where EN55011 Class A is deemed applicable, the following requirements apply:

This equipment is not intended for use in residential environments and may

not provide adequate protection to radio reception in such environments.

This equipment should be connected to inverters with a rated power > 20

kVA and is intended to be installed in a large photovoltaic power generating

system by a professional.

This equipment should be physically separated from residential

environments by a distance greater than 30 m, and can be equipped with

additional filtering if necessary.

Three Phase Inverter with Synergy Technology P/N: SExxK-xxxxIxxxx SExxK-xxxxIxxxx

2 Emission Compliance

Revision History

Version 1.1 (May. 2021)

Added Synergy Unit connectors drawing

Version 1.0, April 2021: Initial release

Revision History 3

Three Phase Inverter with Synergy Technology P/N: SExxK-xxxxIxxxx SExxK-xxxxIxxxx

Contents

Disclaimers 1

Important Notice 1

Emission Compliance 2

Revision History 3

HANDLING AND SAFETY INSTRUCTIONS 6

Safety Symbols Information 6

Chapter 1: Introducing the SolarEdge Power Harvesting System 9

Power Optimizer 9

Three Phase Inverter with Synergy Technology 10

Monitoring Platform 11

Designer 11

Supported ACGrids 11

Installation Tools and Material List 11

Installation Procedure 12

Chapter 2: Installing the Power Optimizers 14

Safety 14

Installation Guidelines 15

Step 1: Mounting the Power Optimizers 18

Step 2: Connecting a PV module to a Power Optimizer 18

Step 3: Connecting Power Optimizers in Strings 19

Step 4: Verifying Proper Power Optimizer Connection 20

Chapter 3: Installing the Synergy Manager and Synergy Units 22

Synergy Manager Package Contents 22

Synergy Unit Package Contents 22

Identifying the Units 22

Front Interface of Synergy Manager 23

Inverter Interconnection Cable Interfaces 27

Synergy Manager External Cable Interface 28

Synergy Unit Interface Connectors 29

Mounting and Connecting the Synergy Manager and Synergy Units 30

Chapter 4: Connecting AC and PV Strings to the Synergy Manager 34

Grid Connection Guidelines 34

Connecting the ACGrid to the Synergy Manager 34

Connecting the PV Strings to the Synergy Manager 36

Connecting Ground and AC to the Synergy Manager 39

Chapter 5: Activating, Commissioning and Configuring the System 45

On-grid Commissioning of the inverter 46

Step 3: Verifying Proper Activation and Commissioning 48

Pre-commissioning (Off-Grid) 48

Three Phase Inverter with Synergy Technology P/N: SExxK-xxxxIxxxx SExxK-xxxxIxxxx

4 Revision History

Reporting and Monitoring Installation Data 50

Chapter 6: Setting Up Communication with the Monitoring Platform 53

Communication Options 53

Communication Connectors 54

Creating an Local Area Network (LAN) Connection 57

Creating an RS485 Bus Connection 61

RS485 Bus Configuration 64

Verifying the Connection 64

Signaling Options 65

Appendix A: Errors and Troubleshooting 67

Identifying Errors 67

Power Optimizer Troubleshooting 68

Troubleshooting Communication 70

Appendix B: Adding Optional Components 72

AC Surge Protection Device (SPD) 72

DC Surge Protection Device (SPD) 72

Appendix C: Mechanical Specifications 73

Appendix D: SafeDC™ 74

Revision History 5

Three Phase Inverter with Synergy Technology P/N: SExxK-xxxxIxxxx SExxK-xxxxIxxxx

HANDLING AND SAFETY INSTRUCTIONS

Safety Symbols Information

The following safety symbols are used in this document. Familiarize yourself with the

symbols and their meaning before installing or operating the system.

WARNING!

Denotes a hazard. It calls attention to a procedure that, if not correctly

performed or adhered to, could result in injury or loss of life. Do not proceed

beyond a warning note until the indicated conditions are fully understood and

met.

CAUTION!

Denotes a hazard. It calls attention to a procedure that, if not correctly

performed or adhered to, could result in damage or destruction of the

product. Do not proceed beyond a caution sign until the indicated conditions

are fully understood and met.

NOTE

Denotes additional information about the current subject.

IMPORTANTSAFETYFEATURE

Denotes information about safety issues.

Disposal requirements under the Waste Electrical and Electronic Equipment (WEEE)

regulations:

NOTE

Discard this product according to local regulations or send it back to SolarEdge.

Warning!

To reduce the risk of injury, read all instructions in this document.

WARNING!

Using this equipment in a manner not specified by SolarEdge in this document

may impair the protection provided by this equipment.

WARNING!

The inverter cover must be opened only after switching the inverter ON/OFF/P

switch located at the bottom of the inverter to OFF. This disables the DC voltage

inside the inverter. Wait five minutes before opening the cover. Otherwise, there

is a risk of electric shock from energy stored in the capacitors.



Three Phase Inverter with Synergy Technology P/N: SExxK-xxxxIxxxx SExxK-xxxxIxxxx

6 HANDLING AND SAFETY INSTRUCTIONS

WARNING!

Before operating the inverter, ensure that the inverter AC power cable and wall

outlet are grounded properly. This product must be connected to a grounded,

metal, permanent wiring system, or an equipment-grounding conductor must

be run with the circuit conductors and connected to the equipment grounding

terminal or lead on the product.

WARNING!

Opening the inverter and repairing or testing under power must be performed

only by qualified service personnel familiar with this inverter.

WARNING!

Do not touch the PV panels or any rail system connected when the inverter

switch is ON, unless grounded.

WARNING!

SafeDC complies with IEC60947-3 when installing the system with a worst case

SafeDC voltage (under fault conditions) < 120V.

The worst case voltage is defined as: Voc, max+ (String Length-1)*1V, where:

Voc,max = Maximum Voc (at lowest temperature) of the PV modules in the

string (for a string with multiple modules, use the max value)

String Length = number of Power Optimizers in the string

CAUTION!

This unit must be operated according to the technical specification datasheet

provided with the unit.

CAUTION!

HEAVY OBJECT. To avoid muscle strain or back injury, use proper lifting

techniques, and if required - a lifting aid.

NOTE

Use PV modules rated according to IEC 61730 class A.

NOTE

The symbol appears at grounding points on the SolarEdge equipment. This

symbol is also used in this manual.

HANDLING AND SAFETY INSTRUCTIONS 7

Three Phase Inverter with Synergy Technology P/N: SExxK-xxxxIxxxx SExxK-xxxxIxxxx

NOTE

SolarEdge inverters can be installed in sites with an alternative power source

such as a generator. SolarEdge requires installing a physical or electronic

interlock, which will signal to the inverter when the grid has been

disconnected. Interlock procurement, installation, maintenance and support

are the responsibility of the installer. Damage to the inverter due to incorrect

interlock installation or use of an interlock that is incompatible with the

SolarEdge system will render the SolarEdge warranty invalid.

For more information on connecting an alternative power source

to SolarEdge inverter, refer to

https://www.solaredge.com/sites/default/files/se-inverter-

support-of-voltage-sources.pdf.

NOTE

The following warning symbols appear on the inverter warning label:

Risk of electric shock

Risk of electric shock from energy stored in the capacitor. Do

not remove cover until 5 minutes after disconnecting all

sources of supply.

Hot surface – To reduce the risk of burns, do not touch.

Caution, risk of danger

Three Phase Inverter with Synergy Technology P/N: SExxK-xxxxIxxxx SExxK-xxxxIxxxx

8 Safety Symbols Information

Chapter 1: Introducing the SolarEdge Power

Harvesting System

The SolarEdge power harvesting solution is designed to maximize the power output

from any type of solar Photovoltaic (PV) installation while reducing the average cost

per Watt.

Figure 1

shows and the following sections describe the components of the

SolarEdge power harvesting system.



Figure 1: The SolarEdge power harvesting system components

Power Optimizer

The Power Optimizers are DC-DC converters connected to PV modules to maximize

power harvesting by performing independent Maximum Power Point Tracking (MPPT)

at the module level.

The Power Optimizers regulate the string voltage at a constant level, regardless of string

length and environmental conditions.

The Power Optimizers include a safety Voltage function that automatically reduces the

output of each Power Optimizer to 1 Vdc in the following cases:

During fault conditions

The Power Optimizers are disconnected from the inverter

The inverter ON/OFF/P switch is turned OFF

Chapter 1: Introducing the SolarEdge Power Harvesting System 9

Three Phase Inverter with Synergy Technology P/N: SExxK-xxxxIxxxx SExxK-xxxxIxxxx

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